I agree Geralt is more grown up now, but that doesn't mean there should be no option to have something going on here and there.
I mean what about the people who don't like Triss or Yen? What about the people who would decide for a single-life for Geralt?
I did at least expect a TW2-level amount of opportunities, especially since the game is about 4 times as long as TW2.
Geralt ALWAYS slept around and even when he had Ciri and even when he had his off-and-on with Yennefer they did (BOTH actually, Yen also) have their flings on the side. They knew it was never anything serious (well, most of the time *cough* Triss *cough* Fringilla *cough* that-mage-Yen-had-something-with-forgot-his-name *cough*). For them it was just.... relaxing, having fun, nothing personal.